Gas
Mileage
Calculator

Calculate fuel efficiency in MPG, L/100km, and km/L from distance driven and fuel used.

Input

Unit System

Optional -- enter to see cost per mile/km.

Result

Miles per gallon30 MPG
Liters per 100 km7.8 L/100km
Kilometers per liter12.8 km/L

EPA Reference

The average fuel economy for new US passenger vehicles is approximately 25.4 MPG (EPA 2022). Vehicles above 30 MPG are considered above average. Hybrid vehicles typically achieve 40-60 MPG, while full electric vehicles have MPGe ratings of 100+.

Learn more

Why does improving from 10 to 20 MPG save far more fuel than 30 to 40 MPG?

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Frequently Asked Questions

Fill the tank, note the odometer reading, drive until refueling, then divide the miles driven by the gallons used to refill. For example, 350 miles on 11.7 gallons equals 29.9 MPG.

A combined MPG above 30 is generally considered good for a gasoline car in 2024. Hybrid vehicles typically achieve 40-60 MPG, while electric vehicles are measured in MPGe (miles per gallon equivalent).

Divide 235.21 by the MPG value to get liters per 100 kilometers. For 30 MPG, the equivalent is 235.21 / 30 = 7.84 L/100km.

Gas Mileage Calculator - MPG, L/100km, km/L | ToolsCanvas